Long time ago a mouse and a frog were friends. Every morning the frog would hop out ofits pond and go to visit its friends who lived in the hole in the side of a tree. It would return
home at noon.
The mouse delighted in its friend's company was unaware that the friend was slowly
turning inti an anamy. The frog felt slighted because thoughit visited the mouse every day, the
mouse on its part, had never made an attempt to visit it.
One day the frog elt it had been humiliated enought. When it was time for the frog to take
leave of the mouse, it tied one end of a string around its own leg, led the other end to the
mouse's tail and hopped away dragging the happiess mouse behind it.
The frog dived deep into the pond. The mouse tried to free itself, but couldn't, and soon
drowed, its bloated body floated to the top.
A hawk saw the mouse floating on the pond's surface. It swooped down, and grabbing the
mouse in its talons, flew to the branch of a nearby tree. The frog of course, was hauled out of
the water too. It desprerately tried to free itself, but couldn't and the hawk soon put an end to
its struggles

Based on the story, we know that the mouse
deer was...

a . an intelligent animal
b . a foolish animal
c . a canny animal
d . a helpful animal​